2.2.255 Problems 25401 to 25500

Table 2.527: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

25401

\begin{align*} y^{\prime }&=2-y \\ y \left (0\right ) &= 0 \\ \end{align*}

[_quadrature]

1.090

25402

\begin{align*} y^{\prime }&=-2 y+8 \\ y \left (0\right ) &= 6 \\ \end{align*}

[_quadrature]

2.355

25403

\begin{align*} y^{\prime }&=5 \\ y \left (0\right ) &= 2 \\ \end{align*}

[_quadrature]

1.003

25404

\begin{align*} y^{\prime }-9 y&=90 \\ y \left (0\right ) &= 1 \\ \end{align*}

[_quadrature]

2.503

25405

\begin{align*} y^{\prime }+9 y&=90 \\ y \left (0\right ) &= 1 \\ \end{align*}

[_quadrature]

1.188

25406

\begin{align*} y^{\prime }&=3 y+{\mathrm e}^{3 t} \\ \end{align*}

[[_linear, ‘class A‘]]

1.442

25407

\begin{align*} y^{\prime }-4 y&=-8 \\ \end{align*}

[_quadrature]

0.869

25408

\begin{align*} y^{\prime }+4 y&=8 \\ \end{align*}

[_quadrature]

0.875

25409

\begin{align*} y^{\prime }+2 y&=6 \\ y \left (0\right ) &= 1 \\ \end{align*}

[_quadrature]

1.148

25410

\begin{align*} y^{\prime }+2 y&=-6 \\ y \left (0\right ) &= 1 \\ \end{align*}

[_quadrature]

1.136

25411

\begin{align*} y+y^{\prime }&=\operatorname {Heaviside}\left (-2+t \right ) \\ \end{align*}

[[_linear, ‘class A‘]]

0.836

25412

\begin{align*} y+y^{\prime }&=\operatorname {Heaviside}\left (t -10\right ) \\ \end{align*}

[[_linear, ‘class A‘]]

0.839

25413

\begin{align*} y^{\prime }&=\operatorname {Heaviside}\left (t -T \right ) \\ y \left (0\right ) &= 2 \\ \end{align*}

[_quadrature]

0.513

25414

\begin{align*} y^{\prime }-5 y&=3 \operatorname {Heaviside}\left (t -4\right ) \\ \end{align*}

[[_linear, ‘class A‘]]

0.861

25415

\begin{align*} y+y^{\prime }&=7 \operatorname {Heaviside}\left (t -4\right ) \\ \end{align*}

[[_linear, ‘class A‘]]

0.854

25416

\begin{align*} y^{\prime }+2 y&=\operatorname {Heaviside}\left (t -4\right )-\operatorname {Heaviside}\left (t -6\right ) \\ y \left (0\right ) &= 0 \\ \end{align*}

[[_linear, ‘class A‘]]

2.174

25417

\begin{align*} y^{\prime }&=\operatorname {Heaviside}\left (t -1\right )+\operatorname {Heaviside}\left (-2+t \right )+\operatorname {Heaviside}\left (t -3\right ) \\ y \left (0\right ) &= 0 \\ \end{align*}

[_quadrature]

0.606

25418

\begin{align*} y^{\prime }&=2 y+\delta \left (t -3\right ) \\ y \left (0\right ) &= 0 \\ \end{align*}

[[_linear, ‘class A‘]]

1.023

25419

\begin{align*} y^{\prime }&=2 y+\delta \left (t -3\right ) \\ y \left (0\right ) &= 1 \\ \end{align*}

[[_linear, ‘class A‘]]

0.954

25420

\begin{align*} -y+y^{\prime }&=\delta \left (-2+t \right ) \\ y \left (0\right ) &= 2 \\ \end{align*}

[[_linear, ‘class A‘]]

1.015

25421

\begin{align*} y+y^{\prime }&=\delta \left (-2+t \right ) \\ y \left (0\right ) &= 2 \\ \end{align*}

[[_linear, ‘class A‘]]

1.003

25422

\begin{align*} y^{\prime }&=\operatorname {Heaviside}\left (t -1\right )+\delta \left (t -1\right ) \\ y \left (0\right ) &= 0 \\ \end{align*}

[_quadrature]

0.497

25423

\begin{align*} y^{\prime }&=-y+\operatorname {Heaviside}\left (t -3\right )+\delta \left (t -1\right ) \\ \end{align*}

[[_linear, ‘class A‘]]

1.039

25424

\begin{align*} -y+y^{\prime }&=8 \,{\mathrm e}^{3 t} \\ y \left (0\right ) &= 2 \\ \end{align*}

[[_linear, ‘class A‘]]

1.898

25425

\begin{align*} y+y^{\prime }&=8 \,{\mathrm e}^{-3 t} \\ y \left (0\right ) &= 2 \\ \end{align*}

[[_linear, ‘class A‘]]

1.846

25426

\begin{align*} -2 y+y^{\prime }&={\mathrm e}^{\frac {201 t}{100}} \\ y \left (0\right ) &= 1 \\ \end{align*}

[[_linear, ‘class A‘]]

1.905

25427

\begin{align*} -2 y+y^{\prime }&={\mathrm e}^{2 t} \\ y \left (0\right ) &= 1 \\ \end{align*}

[[_linear, ‘class A‘]]

1.668

25428

\begin{align*} y^{\prime }+4 y&=8 \,{\mathrm e}^{-4 t}+20 \\ y \left (0\right ) &= 0 \\ \end{align*}

[[_linear, ‘class A‘]]

2.502

25429

\begin{align*} y^{\prime }-a y&={\mathrm e}^{c t} \\ \end{align*}

[[_linear, ‘class A‘]]

1.700

25430

\begin{align*} y^{\prime }-a \left (t \right ) y&=0 \\ \end{align*}

[_separable]

2.256

25431

\begin{align*} y^{\prime }-a \left (t \right ) y&=q \left (t \right ) \\ \end{align*}

[_linear]

1.771

25432

\begin{align*} y^{\prime }-a \left (t \right ) y&=q \\ \end{align*}

[_linear]

1.566

25433

\begin{align*} y^{\prime }-a \left (t \right ) y&=\operatorname {Heaviside}\left (t \right ) \\ \end{align*}

[_linear]

0.753

25434

\begin{align*} y^{\prime }-a \left (t \right ) y&=\delta \left (t \right ) \\ \end{align*}

[_linear]

0.676

25435

\begin{align*} y^{\prime }-a \left (t \right ) y&={\mathrm e}^{c t} \\ \end{align*}

[_linear]

1.941

25436

\begin{align*} y^{\prime }&=a \left (t \right ) y+q \left (t \right ) \\ \end{align*}

[_linear]

1.704

25437

\begin{align*} y^{\prime }&=2 y+3 \cos \left (t \right )+4 \sin \left (t \right ) \\ \end{align*}

[[_linear, ‘class A‘]]

2.333

25438

\begin{align*} y^{\prime }&=-y-\cos \left (2 t \right ) \\ \end{align*}

[[_linear, ‘class A‘]]

1.985

25439

\begin{align*} y^{\prime }&=y+\cos \left (t \right ) \\ \end{align*}

[[_linear, ‘class A‘]]

1.920

25440

\begin{align*} y^{\prime }-4 y&=\cos \left (3 t \right )+\sin \left (3 t \right ) \\ \end{align*}

[[_linear, ‘class A‘]]

2.562

25441

\begin{align*} y^{\prime }-a y&=A \cos \left (\omega t \right )+B \sin \left (\omega t \right ) \\ y \left (0\right ) &= 0 \\ \end{align*}

[[_linear, ‘class A‘]]

2.447

25442

\begin{align*} y^{\prime }&=A \cos \left (\omega t \right )+B \sin \left (\omega t \right ) \\ \end{align*}

[_quadrature]

0.300

25443

\begin{align*} y^{\prime }-3 y&=5 \,{\mathrm e}^{2 i t} \\ \end{align*}

[[_linear, ‘class A‘]]

25.017

25444

\begin{align*} y^{\prime }&=2 y-{\mathrm e}^{i t} \\ \end{align*}

[[_linear, ‘class A‘]]

25.515

25445

\begin{align*} z^{\prime }+4 z&={\mathrm e}^{8 i t} \\ \end{align*}

[[_linear, ‘class A‘]]

49.995

25446

\begin{align*} z^{\prime }+4 i z&={\mathrm e}^{8 i t} \\ \end{align*}

[[_linear, ‘class A‘]]

1.181

25447

\begin{align*} z^{\prime }+4 i z&={\mathrm e}^{8 t} \\ \end{align*}

[[_linear, ‘class A‘]]

50.648

25448

\begin{align*} y^{\prime }-a y&=R \cos \left (\omega t -\phi \right ) \\ \end{align*}

[[_linear, ‘class A‘]]

2.451

25449

\begin{align*} -2 y+y^{\prime }&=\cos \left (\omega t \right ) \\ y \left (0\right ) &= 0 \\ \end{align*}

[[_linear, ‘class A‘]]

2.197

25450

\begin{align*} -y+y^{\prime }&=\sin \left (\omega t \right )+\cos \left (\omega t \right ) \\ \end{align*}

[[_linear, ‘class A‘]]

2.457

25451

\begin{align*} y^{\prime }-\sqrt {3}\, y&=\sin \left (t \right )+\cos \left (t \right ) \\ \end{align*}

[[_linear, ‘class A‘]]

2.955

25452

\begin{align*} y^{\prime }-a y&=A \cos \left (\omega t \right )+B \sin \left (\omega t \right ) \\ \end{align*}

[[_linear, ‘class A‘]]

2.509

25453

\begin{align*} y^{\prime }&=1+y \\ y \left (0\right ) &= 4 \\ \end{align*}

[_quadrature]

1.471

25454

\begin{align*} y^{\prime }&=y-1 \\ y \left (0\right ) &= {\frac {1}{2}} \\ \end{align*}

[_quadrature]

1.207

25455

\begin{align*} y^{\prime }&=t^{2}+y \\ y \left (0\right ) &= 1 \\ \end{align*}

[[_linear, ‘class A‘]]

2.440

25456

\begin{align*} y^{\prime }&=y+{\mathrm e}^{t} \\ y \left (0\right ) &= 1 \\ \end{align*}

[[_linear, ‘class A‘]]

1.842

25457

\begin{align*} y^{\prime }&=y-t^{2} \\ y \left (0\right ) &= 1 \\ \end{align*}

[[_linear, ‘class A‘]]

2.555

25458

\begin{align*} y^{\prime }&=-{\mathrm e}^{t}+y \\ y \left (0\right ) &= 1 \\ \end{align*}

[[_linear, ‘class A‘]]

1.864

25459

\begin{align*} y^{\prime }&=y-{\mathrm e}^{2 t} \\ y \left (0\right ) &= 1 \\ \end{align*}

[[_linear, ‘class A‘]]

2.164

25460

\begin{align*} y^{\prime }&=y+2 t \\ y \left (0\right ) &= 0 \\ \end{align*}

[[_linear, ‘class A‘]]

1.590

25461

\begin{align*} y^{\prime }&=t +2 y \\ y \left (0\right ) &= 0 \\ \end{align*}

[[_linear, ‘class A‘]]

1.822

25462

\begin{align*} y^{\prime }&=2 y+{\mathrm e}^{t} \\ y \left (0\right ) &= 1 \\ \end{align*}

[[_linear, ‘class A‘]]

2.122

25463

\begin{align*} y^{\prime }&=y+{\mathrm e}^{2 t} \\ y \left (0\right ) &= 1 \\ \end{align*}

[[_linear, ‘class A‘]]

3.937

25464

\begin{align*} y^{\prime }&=a \left (t \right ) y+\delta \left (-t +s \right ) \\ \end{align*}

[_linear]

0.776

25465

\begin{align*} y^{\prime }&=\sin \left (t \right ) y+Q \sin \left (t \right ) \\ \end{align*}

[_separable]

3.857

25466

\begin{align*} y^{\prime }&=\sin \left (t \right ) y \\ y \left (0\right ) &= 1 \\ \end{align*}

[_separable]

4.793

25467

\begin{align*} y^{\prime }&=\frac {y}{1+t}+10 \\ \end{align*}

[_linear]

2.629

25468

\begin{align*} y^{\prime }&=\frac {y}{1+t} \\ y \left (0\right ) &= 1 \\ \end{align*}

[_separable]

3.086

25469

\begin{align*} y^{\prime }&=a y-b y^{2} \\ \end{align*}

[_quadrature]

5.891

25470

\begin{align*} m y^{\prime \prime }+k y&=F \\ \end{align*}

[[_2nd_order, _missing_x]]

2.943

25471

\begin{align*} y^{\prime }&=1+y \\ y \left (0\right ) &= -1 \\ \end{align*}

[_quadrature]

0.789

25472

\begin{align*} y^{\prime }&=1+y \\ y \left (0\right ) &= 0 \\ \end{align*}

[_quadrature]

1.019

25473

\begin{align*} y^{\prime }&=y^{2}+y \\ y \left (0\right ) &= 1 \\ \end{align*}

[_quadrature]

1.585

25474

\begin{align*} y^{\prime }&=a y-b y^{n} \\ \end{align*}

[_quadrature]

2.549

25475

\begin{align*} y^{\prime }&=y-y^{2} \\ y \left (0\right ) &= {\frac {1}{2}} \\ \end{align*}

[_quadrature]

1.361

25476

\begin{align*} y^{\prime }&=y-y^{2} \\ y \left (0\right ) &= 2 \\ \end{align*}

[_quadrature]

1.737

25477

\begin{align*} y^{\prime }&=y-y^{2} \\ y \left (0\right ) &= -1 \\ \end{align*}

[_quadrature]

1.454

25478

\begin{align*} y^{\prime }&=y-y^{2}-\frac {1}{4} \\ y \left (0\right ) &= {\frac {1}{2}} \\ \end{align*}

[_quadrature]

0.829

25479

\begin{align*} y^{\prime }&=y \left (1-y\right ) \left (2-y\right ) \\ \end{align*}

[_quadrature]

1.948

25480

\begin{align*} y^{\prime }&=y \left (1-\ln \left (y\right )\right ) \\ \end{align*}

[_quadrature]

1.282

25481

\begin{align*} y^{\prime }&=2 \left (1-y\right ) \left (1-{\mathrm e}^{y}\right ) \\ \end{align*}

[_quadrature]

2.005

25482

\begin{align*} y^{\prime }&=\left (1-y^{2}\right ) \left (4-y^{2}\right ) \\ \end{align*}

[_quadrature]

1.207

25483

\begin{align*} y^{\prime }&=k \left (m^{4}-y^{4}\right ) \\ y \left (0\right ) &= \frac {m}{2} \\ \end{align*}

[_quadrature]

8.057

25484

\begin{align*} y^{\prime }&=a y-y^{3} \\ \end{align*}

[_quadrature]

10.805

25485

\begin{align*} y^{\prime }&=\sin \left (y\right ) \\ \end{align*}

[_quadrature]

32.185

25486

\begin{align*} y^{\prime }&=\sin \left (y\right )^{2} \\ \end{align*}

[_quadrature]

2.365

25487

\begin{align*} y^{\prime }&=y^{2}-y^{4} \\ \end{align*}

[_quadrature]

1.195

25488

\begin{align*} y^{\prime }&=y^{2} \\ y \left (0\right ) &= 1 \\ \end{align*}

[_quadrature]

2.513

25489

\begin{align*} y^{\prime }&=y^{2} \\ y \left (0\right ) &= y_{0} \\ \end{align*}

[_quadrature]

2.116

25490

\begin{align*} y^{\prime }&=a \left (t \right ) y \\ y \left (0\right ) &= 1 \\ \end{align*}

[_separable]

4.450

25491

\begin{align*} y^{\prime }&=t y \\ y \left (0\right ) &= 0 \\ \end{align*}

[_separable]

4.358

25492

\begin{align*} y^{\prime }&=t^{m} y^{n} \\ y \left (0\right ) &= 0 \\ \end{align*}

[_separable]

190.349

25493

\begin{align*} y^{\prime }&=a \left (t \right ) y^{2} \\ y \left (0\right ) &= 1 \\ \end{align*}

[_separable]

3.424

25494

\begin{align*} y^{\prime }&=y+t \\ \end{align*}

[[_linear, ‘class A‘]]

1.495

25495

\begin{align*} y^{\prime }&=\frac {y}{t} \\ \end{align*}

[_separable]

2.870

25496

\begin{align*} y^{\prime }&=\frac {c t -a y}{A t +b y} \\ \end{align*}

[[_homogeneous, ‘class A‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

65.322

25497

\begin{align*} y^{\prime }&=\frac {y^{2}}{t^{2}} \\ \end{align*}

[_separable]

5.350

25498

\begin{align*} y^{\prime }&={\mathrm e}^{y+t} \\ \end{align*}

[_separable]

2.546

25499

\begin{align*} y^{\prime }&=t y+t +y+1 \\ \end{align*}

[_separable]

3.251

25500

\begin{align*} y^{\prime }&=\left (y+4\right ) \cos \left (t \right ) \\ \end{align*}

[_separable]

3.563